阅读说明：本技术 一种大型组合式砂石骨料筛分机 (Large-scale combination formula grit aggregate screening machine ) 是由 马驰 孙启祥 孙法虎 于 2019-12-04 设计创作，主要内容包括：本发明公开了一种大型组合式砂石骨料筛分机,涉及一种筛分机,包括壳体,壳体底部向下凸出呈锥形,壳体底部中央开设有出料口,出料口外侧连接有出料闸门,出料闸门呈冲孔板状结构,所述壳体内侧固定连接有螺旋形导向槽,导向槽至少螺旋三圈,所述导向槽底部开设有筛料孔；壳体左侧壁开设有纵向通孔,所述纵向通孔分别位于相应导向槽左上方,纵向通孔内侧滑动连接有水平联动杆。本发明结构简单,使用方便,使用时通过螺旋状的导向槽对原料进行筛选,在砂石呈螺旋状下落过程中细小物料可以直接经过筛孔掉落,从而快速实现筛选,而较大的物料则需要按照导向槽进行运动,同时在经过挡料板时被阻碍,从而对砂石进行有效筛选。(The invention discloses a large combined type gravel aggregate screening machine, which relates to a screening machine and comprises a shell, wherein the bottom of the shell protrudes downwards to form a cone, the center of the bottom of the shell is provided with a discharge hole, the outer side of the discharge hole is connected with a discharge gate, the discharge gate is of a punched plate-shaped structure, the inner side of the shell is fixedly connected with a spiral guide groove, the guide groove is at least spirally wound for three circles, and the bottom of the guide groove is provided with a screening hole; the left side wall of the shell is provided with a longitudinal through hole, the longitudinal through holes are respectively positioned at the upper left of the corresponding guide grooves, and the inner side of the longitudinal through hole is connected with a horizontal linkage rod in a sliding manner. The spiral screening device is simple in structure and convenient to use, raw materials are screened through the spiral guide grooves during use, fine materials can directly fall through the screen holes in the spiral falling process of the gravel, screening is rapidly achieved, large materials need to move according to the guide grooves and are blocked when passing through the material baffle, and accordingly the gravel is effectively screened.)

1. The large combined gravel aggregate screening machine comprises a shell (1), wherein the bottom of the shell (1) protrudes downwards to form a cone, the center of the bottom of the shell (1) is provided with a discharge hole (3), the outer side of the discharge hole (3) is connected with a discharge gate (4), and the discharge gate (4) is of a punched plate-shaped structure, and is characterized in that the inner side of the shell (1) is fixedly connected with a spiral guide groove (5), the guide groove (5) is at least spirally wound for three circles, and the bottom of the guide groove (5) is provided with a screening hole (6); vertical through-hole (7) have been seted up to casing (1) left side wall, vertical through-hole (7) are located corresponding guide way (5) upper left side respectively, and vertical through-hole (7) inboard sliding connection has horizontal gangbar (8), and horizontal gangbar (8) inner fixedly connected with striker plate (9), striker plate (9) cooperate with guide way (5), horizontal gangbar (8) left end all with vertical transfer line (10) fixed connection, casing (1) left side below fixedly connected with locating support (11), rotate on locating support (11) and be connected with vertical threaded rod (12), vertical threaded rod (12) bottom fixedly connected with rotates handle (13), vertical threaded rod (12) top is rotated and is connected with kicking block (14), and kicking block (14) cooperate with vertical transfer line (10) bottom.

2. The large combined gravel aggregate screening machine according to claim 1, wherein the bottom of the shell (1) is fixedly connected with upright columns (15) in a bilateral symmetry mode, the bottom of each upright column (15) is fixedly connected with a horizontal bottom plate (16), and a shock pad (17) is fixedly connected below each horizontal bottom plate (16).

3. The large scale modular sand and stone aggregate screening machine according to claim 2, characterized in that the shock pad (17) is ring-shaped.

4. The large combined gravel aggregate screening machine according to claim 1, wherein the bottom of the shell (1) is fixedly connected with the vibrating motor (2) in a bilateral symmetry manner.

5. The large combined gravel and aggregate screening machine according to claim 1, wherein the number of spiral turns of the guide groove (5) is three.

6. A large scale combined sand and stone aggregate screening machine according to any one of claims 1 to 5, characterized in that the pitch of the guide grooves (5) is 0.5-1 m.

7. A large modular sand and stone aggregate screening machine according to claim 6, characterised in that the pitch of the longitudinal threaded rods (12) does not exceed 1 mm.

Technical Field

The invention relates to a screening machine, in particular to a large-scale combined sandstone aggregate screening machine.

Background

The aggregate of sandstone is the general name of materials such as sand, pebble (gravel), broken stone, block stone, material stone and the like in hydraulic engineering. The sandstone aggregate is a main building material of structures such as concrete, piled stone and the like in hydraulic engineering.

Chinese patent (publication number: CN 109078827A) discloses a sandstone aggregate screening device, which comprises a screening cylinder and a sedimentation tank, wherein the sedimentation tank is arranged below the screening cylinder, a jacket layer is arranged on the arc-shaped side wall of the upper part of the screening cylinder, a water inlet is arranged on the jacket layer, a plurality of water outlet holes are communicated with the jacket layer on the side wall of the upper part of the screening cylinder, and sand discharge holes are densely distributed on the side wall of the lower part of the screening cylinder.

But the screening effect of this device is not good in the in-service use in-process, can not be fine to the grit aggregate processing.

Disclosure of Invention

The invention aims to provide a large combined sandstone aggregate screening machine to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a large combined gravel aggregate screening machine comprises a shell, wherein the bottom of the shell protrudes downwards to form a cone, a discharge hole is formed in the center of the bottom of the shell, a discharge gate is connected to the outer side of the discharge hole and is of a punched plate-shaped structure, a spiral guide groove is fixedly connected to the inner side of the shell, the guide groove is at least screwed for three circles, and a screening hole is formed in the bottom of the guide groove; vertical through-hole has been seted up to casing left side wall, vertical through-hole is located corresponding guide way upper left side respectively, and the inboard sliding connection of vertical through-hole has the horizontal linkage pole, the inner fixedly connected with striker plate of horizontal linkage pole, and the striker plate cooperatees with the guide way, horizontal linkage pole left end all with vertical transfer line fixed connection, casing left side below fixedly connected with locating support rotates on the locating support and is connected with vertical threaded rod, vertical threaded rod bottom fixedly connected with rotation handle, vertical threaded rod top rotates and is connected with the kicking block, and the kicking block cooperatees with vertical transfer line bottom.

As a further scheme of the invention: the shell bottom bilateral symmetry fixedly connected with stand, stand bottom fixedly connected with horizontal base plate, horizontal base plate below fixedly connected with shock pad.

As a still further scheme of the invention: the shock pad is annular.

As a still further scheme of the invention: and the bottom of the shell is fixedly connected with vibrating motors in a bilateral symmetry mode.

As a still further scheme of the invention: the spiral number of turns of the guide groove is three.

As a still further scheme of the invention: the screw pitch of the guide groove is 0.5-1 m.

As a still further scheme of the invention: the thread pitch of the longitudinal threaded rod is not more than 1 mm.

Compared with the prior art, the invention has the beneficial effects that: the spiral screening device is simple in structure and convenient to use, raw materials are screened through the spiral guide grooves during use, fine materials can directly fall through the screen holes in the spiral falling process of the gravel, screening is achieved rapidly, large materials need to move according to the guide grooves and are blocked when passing through the material baffle, and accordingly the gravel is effectively screened, and the spiral screening device is worthy of popularization.

Drawings

FIG. 1 is a schematic structural diagram of a large combined aggregate screening machine;

FIG. 2 is a schematic top view of a guide channel in a large combined aggregate screening machine;

FIG. 3 is a schematic structural view of a top block in a large combined aggregate screening machine;

in the figure: 1-shell, 2-vibrating motor, 3-discharge port, 4-discharge gate, 5-guide groove, 6-screening hole, 7-longitudinal through hole, 8-horizontal linkage rod, 9-striker plate, 10-longitudinal transmission rod, 11-positioning bracket, 12-longitudinal threaded rod, 13-rotating handle, 14-top block, 15-upright column, 16-horizontal bottom plate and 17-shock pad.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.